Answer: Right isosceles triangle
Step-by-step explanation: This is fairly easy to determine.
Side BC is roughly congruent to side CD. Both sides start from 0 to 7 and a little bit.
Side AC is also congruent by the reflexive property and is also congruent to both triangles' sides because it lines up perfectly. Since both sides BC and CD are congruent, the segment AC likely is perpendicular to segment BD and cuts it into 2 equal and congruent sides.
Sides AB and AD cannot be determined to be congruent.
Since the right angles are between two congruent sides of two triangles, the two triangles are congruent by the Side Angle Side congruence theorem.
Thus, we can say these are 2 right isosceles triangles conjoined together. Hope this helped!
(Proof is attached.)